Family Guy has been around long enough that anyone reading a review of it by now is aware of what it is. It follows the same story-of-the-week (sometimes with or without a side story) procedural format. While they do make callbacks to old jokes and references to past episodes, you really do not have to watch from week to week to follow what is going on (for the most part). There are some two or even three-part episodes from time to time, including this season. But, for the most part, the episodes are stand-alone.
The show continues to be irreverent, making jokes about anything and everything, including the show itself. It is definitely adult humor, especially on the DVDs as the episodes are uncensored and they do drop in swearing that does not get put on the broadcast versions of the episodes. For me, the standout episodes of the season are the season finale in which Peter has a conversation with God. The Putin episode (mainly for the well-inserted Access Holywood Tape joke), the episode in which Brian enters himself into a dog show, and the body-switching episode.
For those who are looking at the DVD set. As you are probably aware, the quality of the extras on the DVD releases has gone down as the years have gone by. For this set, you just get deleted scenes and an animatic of one of the episodes that is longer than the regular episode and have a commentary track on it with a couple of the writers. They are okay but not nearly as extensive as what the older DVD releases got. But, of course, as physical media has been slowly dying, especially when it comes to TV series, the fact that any DVD release happens is lucky.
Overall, the season is good. I still think the series was at its best in its first couple of years before it was canceled by FOX, but it managed to find a formula that works and has kept it on the air for years since it was brought back. As for whether it is worth getting the DVD set, it boils down to whether you want the uncensored episodes, as I have heard, the streaming version of the show is the same as the broadcast version.